Ep12 publish, caller prompt overhaul, favicon, publish fixes, website updates

- Reworked caller prompt: edgy/flirty personality, play along with host bits
- Bumped caller token budget (200-550 range, was 150-450)
- Added 20 layered/morally ambiguous caller stories
- Valentine's Day awareness in seasonal context
- Default LLM model: claude-sonnet-4-5 (was claude-3-haiku)
- Publish: SCP-based SQL transfer (fixes base64 encoding on NAS)
- Favicons: added .ico, 48px, 192px PNGs for Google search results
- Website: button layout cleanup, privacy page, ep12 transcript
- Control panel: channel defaults match audio_settings.json
- Disabled OP3 permanently (YouTube ingest issues on large files)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/css/style.css

@@ -376,9 +376,19 @@ section h2 {
 }
 
 /* Soundboard */
+.sounds-section {
+    grid-column: span 2;
+}
+
+@media (max-width: 700px) {
+    .sounds-section {
+        grid-column: span 1;
+    }
+}
+
 .soundboard {
     display: grid;
-    grid-template-columns: repeat(3, 1fr);
+    grid-template-columns: repeat(6, 1fr);
     gap: 8px;
 }